New experimental constraints on polarizability corrections to hydrogen hyperfine structure

Details New experimental constraints on polarizability corrections to hydrogen hyperfine structure New experimental constraints on polarizability corrections to hydrogen hyperfine structure

2005-12-08

arxiv.org/abs/hep-ph/0512108v3

Phys.Rev.Lett.96:163001,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, no figures

Scientific paper

10.1103/PhysRevLett.96.163001

We present a state-of-the-art evaluation of the polarizability corrections--the inelastic nucleon corrections--to the hydrogen ground-state hyperfine splitting using analytic fits to the most recent data. We find a value $\Delta_{\rm pol} = 1.3 \pm 0.3$ ppm. This is 1--2 ppm smaller than the value of $\Delta_{\rm pol}$ deduced using hyperfine splitting data and elastic nucleon corrections obtained from modern form factor fits.

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